FARGO - With the help of more than 40 tips from the public, police arrested a suspect Wednesday in the Monday robbery of a south Fargo bank.

Timothy Patrick McKenna, 54, a Fargo man with no permanent address, was arrested by police at 2 p.m., Chief Keith Ternes said at a news conference.

McKenna is awaiting charges for robbery, after he allegedly entered Gate City Bank at 1501 S. University Drive on Monday, indicated he had a gun and demanded cash.

Following the arrest, Ternes credited Fargo investigators, the local FBI office, quality video footage provided by the bank and an outpouring of tips with the quick arrest.

"The release of that photograph actually prompted us receiving an excess of 40 citizen tips, most if not all of which were followed up on," Ternes said. "Our compliment to, again, the citizens of Fargo for being very, very engaged and not afraid to step forward."

Police arrested McKenna at an acquaintance's house in the 1600 block of First Avenue South. He is being held in Cass County Jail. Clothing that appeared to match what the suspect was wearing was found at the residence during the arrest.

Ternes said one tip in particular came from a local businessperson, which led police to find McKenna's acquaintance.

"(The tipster) believed they had some encounter with Mr. McKenna, and that he had appeared to have come into money which he ordinarily might not have had," Ternes said.

It was still uncertain if McKenna displayed a firearm during the robbery, Ternes said, adding that it would not affect the charge, only the penalty.

"There certainly was some indication from the tellers on duty that a gun, a firearm, may have been used in a robbery," he said.

Federal charges are also possible, he said.

Ternes said some of the stolen money has been recovered, but he did not specify how much, adding only that "a substantial amount" was taken from the bank.